Black screen on Windows 8 lock screen when changing image?

Question

Windows

Good evening!
I can't figure out what's wrong!
When you change the image on the lock screen and when you turn it on, a black screen appears and it can not be removed in any way, only a reboot ...
When assigning standard windows 8 images, the lock screen is displayed normally and everything works!
Maybe someone knows what's wrong?

Answer 1

All images must be in the image folder ... Otherwise, there may be difficulties ... I had the same thing, but then just the update went through and everything was fine.
With uv. Nicholas

Answer 2

Issue resolved, there was a typo in /etc/postfix/mysql/virtual_mailbox_domains.cf file

Answer 3

I suppose problems with dns
In general, the procedure for catching postfix configuration and operation bugs is well described in the documentation www.postfix.org/DEBUG_README.html#trace_mail